
.content{
    width: 1280px;
    margin: auto 0;

}

.container{
    width: auto;
    margin: auto 0;
}


/* 首页轮播图盒子 */
.banner-box{
    width: 100%;
    display: flex;
    justify-content: center;
    background-color: #f0f0f0;
    align-items: center;
}

.banner-section{
    width: 1180px;
    height: 100%;

}

/* 首页轮播图设置 */
.el-carousel__item h3 {
    color: #475669;
    opacity: 0.75;
    line-height: 300px;
    margin: 0;
    text-align: center;
  }
  
  .el-carousel__item:nth-child(2n) {
    /*background-image: url("src/assets/img/banner.png");*/
    background: url("~@/assets/img/banner.png");
  }
  
  .el-carousel__item:nth-child(2n + 1) {
    /*background-image: url("src/assets/img/banner.png");*/
    background: url("~@/assets/img/banner.png");
  }

  .home-page-content{
    display: flex;
    flex-direction: column;
    align-items: center;

  }

.home-page-content-item1{
    width: 1180px;
    display: flex; 
    margin-top: 30px; 
    margin-bottom: 10px;
    align-items: center;
    justify-content: space-between;
}


.box2{
    text-align: center;
    border: 1px solid #f0f0f0;
    border-radius: 18px;
    /*border: 1px solid skyblue;*/
    background-color: #fff;
    width: 450px;
    height: 380px;
    margin: auto;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}


.footer a{
   color: #666
}

/* 课程详细页面 */
.course-details-banner{
    background-color: #fff;
    height: 100%;
    width: 1180px;
    overflow: hidden;
}

.course-details-banner-header{
    /* background-color: #ccc; */
    height: 50px;
    width: 100%;
    padding-left: 15px;
    line-height: 60px;
}

.course-details-banner-body{
    display: flex; 
    height: 370px; 
    width: 100%; 
    /* background-color: red */
}

.courseDetailsPic{
    border-radius: 15px;
    width: 570px; 
    height: 350px;
    overflow: hidden;
    background-color: #fff;

}

.course-details-banner-body-left{
    display: flex;
    width: 50%;
    height: 100%;
    /* background-color: blue; */
    justify-content: center;
    align-items: center;
}

.course-details-banner-body-right{
    display: flex;
    height: 100%;
    width: 50%;
    padding-left: 10px;
    /* background-color: green; */
    flex-direction: column;

}

.course-details-banner-body-right-1{
    width: 500px;
    height: 40px;
    margin-top: 30px;
    margin-left: 10px;
    padding-left: 10px;
    /* background-color: red; */
    
}
.course-details-banner-body-right-2{
    width: 500px;
    height: 150px;
    margin-top: 30px;
    margin-left: 10px;
    padding: 10px ;
    border-radius: 15px;
    background-color: #f8f9fb;
}
.course-details-banner-body-right-3{
    width: 500px;
    height: 50px;
    margin-top: 30px;
    margin-left: 10px;
    background-color: #fff;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-between;
    
}
.course-details-banner-body-right-3 div:first-child{
    width: 120px;
    height: 50px;
    border-radius: 30px;
    /* justify-content: center; */
    line-height: 30px;
    padding-left: 20px;
    /* background-color: #f1ac44; */
    display: flex;
}
.course-details-banner-body-right-3 div:nth-child(2){
    width: 120px;
    height: 50px;
    border-radius: 30px;
    background-color: #00cc7e;
    display: flex;
}
.course-details-banner-body-right-3 div:nth-child(3){
    width: 120px;
    height: 50px;
    border-radius: 30px;
    background-color: #00cc7e;
    display: flex;
}

.course-details-banner-body-right-3 div{
    font-family: Arial, Helvetica, sans-serif;
    font-size: 18px;
    /* padding-left: 20px; */
    color: #fff;
    /* padding-top: 10px; */
    font-weight: 700;
    justify-content: center;
    align-items: center;
}

.course-details-banner-body-right-3 div:nth-child(2):hover{
    background-color: #00e68e;
}

.course-details-banner-body-right-3 div:nth-child(3):hover{
    background-color: #00e68e;
}

.big-1 {
    display: flex;
    background-color: #f5f5f5;
    height: auto;
    width: 100%;
    margin-top: 10px;
    justify-content: center;
    align-items: center;

}

.big-2 {
        background-color: #f5f5f5;
        height: auto;
        margin-top: 20px;
        margin-bottom: 20px;
        width: 1160px;
        display: flex;

}

.big-2-left{
    background-color: #ffffff;
    border-radius: 30px;
    height: 700px;
    width: 700px;
}

.big-2-right{
    background-color: #ffffff;
    border-radius: 30px;
    margin-left: 50px;
    height: 700px;
    width: 350px;
}

.el-tabs__nav-wrap::after{
    width: 70px;
}

.demo-rate-block {
    margin: 30px 50px;
    /* padding-left: 36px; */
    /*padding: 30px 0;*/
    text-align: center;
    border-right: solid 1px var(--el-border-color);
    display: inline-block;
    width: 69%;
    box-sizing: border-box;
    border-bottom: 1px solid #ccc;
  }
  .demo-rate-block:last-child {
    border-right: none;
  }
  .demo-rate-block .demonstration {
    display: block;
    color: var(--el-text-color-secondary);
    font-size: 14px;
    margin-bottom: 20px;
  }

/* 后台管理页面的头部 */

.header-after-header {
    height: 50px;
    line-height: 50px;
    background-color: #fff;
    border-bottom: 1px solid #ccc;
    display: flex;
    justify-content: space-between;
}

.header-after-header-left {
    width: 300px;
    padding-left: 40px;
    font-weight: bold;
    color: skyblue;
    font-size: 20px;
}

/* 前台头部 */

.front-header-content{
    height: 50px;
    line-height: 50px;
    background-color: #fff;
    border-bottom: 1px solid #ccc;
    display: flex;
    justify-content: space-between;
}

.front-header-content-left{
    width: 200px;
    padding-left: 40px;
    font-weight: bold;
    color: skyblue;
    font-size: 20px;
}

/* 登录start */
.login-tab-item{
    font-weight: 500;
    font-size: 18px;
    line-height: 20px;
    color: #505050;
    cursor: pointer;
}

.login-tab-line{
    width: 1px;
    height: 20px;
    background: #e3e5e7;
    border-radius: 8px;
    margin: 0 1px;
}

.lr-button{
    display: flex;
    width: 300px;
    justify-content: center;
    justify-content: space-evenly;
}

.lr-button button{
    background: #00aeec;
    border-radius: 6px;
    width: 80px;
    height: 40px;
    color: #fff;
    font-size: 14px;
    font-weight: 700
}

/*短信登录界面*/
.login-message-item1{
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 20px;
    height: 200px;
    background-color: #fff;
    width: 350px;
    justify-content: space-evenly;
}

.login-message-item2{
    width: 300px;
    height: 80px;
    border: 1px solid #e3e5e7;
    border-radius: 5px;
}

.login-message-item3{
    width: 300px;
    height: 40px;
    border-bottom: 1px solid #e3e5e7;
    display: flex;
    padding-left: 15px;
    align-items: center;
}

.login-message-item4{
    width: 160px;
    height: 40px;
    font-size: 15px;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-content: center;
    justify-content: space-evenly;
    width: 300px;
    height: 40px;
    border-bottom: 1px solid #e3e5e7;
}

/*密码登录界面*/
.login-password-item1{
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 20px;
    height: 200px;
    background-color: #fff;
    width: 350px;
    justify-content: space-evenly;
}

.login-password-item2{
    width: 300px;
    height: 80px;
    border: 1px solid #e3e5e7;
    border-radius: 5px;
}
.login-password-item3{
    width: 300px;
    height: 40px;
    border-bottom: 1px solid #e3e5e7;
    display: flex;
    padding-left: 15px;
    align-items: center;
}

.login-password-item4{
    width: 160px;
    height: 40px;
    font-size: 14px;
    display: flex;
    flex-wrap: wrap;
    align-content: center;
    width: 300px;
    height: 40px;
    border-bottom: 1px solid #e3e5e7;
}

/* 注册界面 */
.register-content{
    height: 500px;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
}



.register-content div input{
    font-size: 15px;
    width: 250px;
    height: 40px;
    border-radius: 7px;
    border: 1px solid #e3e5e7;
    display: flex;
    padding-left: 15px;
    align-items: center;
}


.register-yzm{
        font-size: 15px;
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        align-content: center;
        justify-content: space-evenly;
        width: 250px;
        height: 30px;
}

.register-button{
    background-color: #00aeec;
    height: 40px;
    border-radius: 8px;
    color: #fff;
    font-weight: 700;
    width: 100px;
}

/* 最新推荐 */
.course-new-module{
display: flex;
flex-wrap: wrap;
}

.course-new-module li{
    width: 270px;
    height: 300px;
    background-color: #ffa924;
    border-radius: 8px;
    margin-right: 10px;
    margin-bottom: 10px;
    overflow: hidden;
}

/* 去掉4的倍数的元素的右边距 */
.course-new-module li:nth-child(4n){
    margin-right: 0;
}

/* 去掉最后4个元素的底边距 */
.course-new-module li:nth-last-child(-n + 4){
    margin-bottom: 0;
}

.course-new-module li div:nth-child(1){
    width: 270px;
    height: 200px;
    overflow: hidden;
    background-color: #fff;
}

.course-new-module p{
    padding-left: 10px;
    font-size: 24px;
}

/* 密码修改 */
.password-Change-item{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 50px;
}

.password-Change-item:last-child{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    justify-content: space-evenly;
    width: 100%;
    height: 50px;
    background-color: #fff;
}

.password-Change-item button{
    height: 40px;
    width: 75px;
    border-radius: 5px;
    background-color: #00aeec;
    font-size: 15px;

}

.password-Change-item1{
    border-radius: 5px;
    width: 250px;
    height: 30px;
    border-bottom: 1px solid #e3e5e7;
    padding-left: 15px;
}

.password-Change-item2{
    display: flex;
    margin-top: 50px;
    flex-direction: column;
    justify-content: space-around;
    width: 1000px;
    height: 350px;
    border: 2px solid #f0f0f0;
    border-radius: 6px;
}

/* 个人信息 */
.message-manage-item-left{
    display: flex;
    margin-top: 50px;
    flex-direction: column;
    justify-content: flex-start;
    width: 600px;
    height: 500px;
    border: 2px solid #f0f0f0;
    border-radius: 6px; 
    align-items: center;
}

.message-manage-item-right{
    display: flex;
    margin-top: 50px;
    flex-direction: column;
    justify-content: space-around;
    width: 300px;
    height: 350px;
    border: 2px solid #f0f0f0;
    border-radius: 6px;
    justify-content: space-around;  
    align-items: center;
}

.message-manage-item{
    display: flex; 
    width: 100%; 
    height: 100%; 
    justify-content: space-evenly;
}

.message-manage-td{
    display: flex;
    justify-content: center;
    align-items: center;
}

.message-manage-input{
    border-radius: 5px;
    width: 250px;
    height: 50px;
    border-bottom: 1px solid #e3e5e7;
    padding-left: 15px;
}

.message-manage-textarea{
    border-radius: 5px;
    width: 250px;
    height: 60px;
    border-bottom: 1px solid #e3e5e7;
    padding-left: 15px;
}

.message-manage-table tbody tr{
    height:50px;
    width: 250px;
}

/*更多课程*/
.more-course-content{
    width: 1180px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    height: 700px;
    /*align-items: center;*/
    /* justify-content: space-between; */
    /* background-color: red; */
}

.more-course-content-item{
    display: flex;
    width: 600px;
    height: 60px;
    background-color: #fff;
    margin: 20px auto 0;
    justify-content: center;
    align-items: center;
}

.more-course-content-item-left{
    width: 90px;
    height: 50px;
    background-color: #f2f3f4;
    border: 1px solid #e6e8e9;
    border-radius: 8px;
    margin-right: 10px;
    font-size: 16px;
    padding-top: 13px;
    padding-left: 18px;

}


.more-course-content-item-right{
    width: 400px;
    height: 50px;
    /* background-color: #f2f3f4; */
    border: 1px solid #e6e8e9;
    border-radius: 8px;

}

.more-course-content-item-right:hover{
    background-color: #ffffff;

}
